"At the stage of Shuusou Gyoku Prototype, there were not even a hint of "M" of Maid, it was a shooting game with cactus as the main playable character. During PC-98 days, I was making a game with cactus as a main character (I think it was titled NeoGian), so Shuusou Gyoku is really a product of many developer's desires meshed up together."https://twitter.com/pbghogehoge/status/976812767016509441

Q: (tl;dr) there are songs called "Untitled" listed on the Prototype. Are these composed by ZUN as well?A: Unfortunately no, it was composed by another member. It was planned to be Stage 3 music, but when we moved to the next phase of the development of Shuusou Gyoku, we threw it out the window.

Q: (tl;dr) Can you share the Music Room of Shuusou Gyoku Prototype separately?A: I cannot share just the Music Room separately by itself. I will also not distribute the prototype. Please consider again my reasons for uploading this video in the description.

That's unfortunate. He has his reasons, I'm sure, but it's still sad that we won't get to hear Frontal Attack in its original quality.